High-resolution frequency-domain spectroscopy for water vapor with coherent and continuous terahertz wave

被引：12
|
作者：
Ruan, Cunjun [1 ,2 ]
Kong, Deyin [1 ]
Dai, Jun [1 ]
Chen, Kanglong [1 ]
Guo, Sujie [1 ]
Wu, Xiaojun [1 ]
机构：
[1] Beihang Univ, Sch Elect & Informat Engn, Beijing 100191, Peoples R China
[2] Beihang Univ, Beijing Key Lab Microwave Sensing & Secur Applica, Beijing 100191, Peoples R China
来源：
CHINESE OPTICS LETTERS | 2019年 / 17卷 / 07期
基金：
中国国家自然科学基金;
关键词：
TRANSMISSION; SO2;
D O I：
10.3788/COL201917.073001
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
High-resolution frequency-domain spectroscopy ( FDS) is set up using a coherent and continuous wave terahertz ( THz) emitter and receiver. THz waves are generated and detected by two photomixers with two distributed feedback ( DFB) lasers. Atmospheric water vapor with different relative humidity is systematically investigated by the FDS. A high-frequency resolution of similar to 14 MHz is obtained with the help of Hilbert transformation, leading to a well resolved and distinct transmittance characterization of water vapor. Compared with conventional THz time-domain spectroscopy, the high-resolution continuous wave THz spectrometer is one of the most practical systems in gas-phase molecular sensing, identification, and monitoring.
引用
收藏
页数：5
相关论文
共 50 条
  • [1] High-resolution frequency-domain spectroscopy for water vapor with coherent and continuous terahertz wave
    阮存军
    孔德胤
    戴军
    陈康龙
    郭素杰
    吴晓君
    Chinese Optics Letters, 2019, 17 (07) : 91 - 95
  • [2] Continuous-Wave Frequency-Domain Terahertz Spectroscopy System
    Yufeng, Jiao
    Sujie, Guo
    Deyin, Kong
    Cunjun, Ruan
    CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG, 2022, 49 (19):
  • [3] High-Resolution Frequency-Domain Terahertz Spectroscopy and its Application to Electron Paramagnetic Resonance
    Shoji, Yuto
    Ohmichi, Eiji
    Takahashi, Hideyuki
    Ohta, Hitoshi
    2021 46TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER AND TERAHERTZ WAVES (IRMMW-THZ), 2021,
  • [4] Refractive Index Measurement Using Continuous Wave Terahertz Frequency-Domain Spectroscopy
    Zhang Tian-yao
    Li Bo-yang
    Li Xing-yuei
    Li Ying
    Wu Xian-hao
    Zhao Xiao-yan
    Zhang Zhao-hui
    SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43 (02) : 495 - 502
  • [5] HIGH-RESOLUTION FREQUENCY-DOMAIN REFLECTOMETRY
    VANHAMME, H
    IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 1990, 39 (02) : 369 - 375
  • [6] High-resolution terahertz digital holography based on frequency-domain diagonal extension imaging
    Yao Wang
    Qi Li
    Optical and Quantum Electronics, 2023, 55
  • [7] High-resolution terahertz digital holography based on frequency-domain diagonal extension imaging
    Wang, Yao
    Li, Qi
    OPTICAL AND QUANTUM ELECTRONICS, 2023, 55 (03)
  • [8] High resolution terahertz ATR frequency-domain spectroscopy for monitoring spinal cord injury in rats
    Fang, Xing
    Huang, Hanxu
    Zhang, Hongqi
    Yang, Zuomin
    Lyu, Zhidong
    Yang, Hang
    Li, Nan
    Zhao, Tengfei
    Yu, Xianbin
    Zhang, Lu
    BIOMEDICAL OPTICS EXPRESS, 2024, 15 (01) : 479 - 490
  • [9] High resolution continuous wave terahertz spectroscopy on solid-state samples with coherent detection
    Kong, De-Yin
    Wu, Xiao-Jun
    Wang, Bo
    Gao, Yang
    Dai, Jun
    Wang, Li
    Ruan, Cun-Jun
    Miao, Jun-Gang
    OPTICS EXPRESS, 2018, 26 (14): : 17964 - 17976
  • [10] Terahertz Frequency Comb for High-accuracy, High-resolution Terahertz Spectroscopy
    Yokoyama, Shuko
    Kabetani, Yasuhiro
    Yasui, Takeshi
    Araki, Tsutomu
    2007 CONFERENCE ON LASERS & ELECTRO-OPTICS/QUANTUM ELECTRONICS AND LASER SCIENCE CONFERENCE (CLEO/QELS 2007), VOLS 1-5, 2007, : 213 - 214
12345